On the mechanism of the cathodic electrodeposition of cadmium telluride

Journal Article · Fri Oct 01 04:00:00 EDT 1993 · Journal of the Electrochemical Society; (United States)

DOI:https://doi.org/10.1149/1.2220927· OSTI ID:5784756

Saraby-Reintjes, A; Peter, L M ^[1]; Oezsan, M E; Dennison, S; Webster, S ^[2]

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1. Univ. of Southampton (United Kingdom). Dept. of Chemistry
2. BP Research Centre, Middlesex (United Kingdom)

The cathodic electrodeposition of cadmium telluride from aqueous solutions have been studied by cyclic voltammetry and potential step techniques at stationary and rotating electrodes. A new theoretical model of the deposition process has been proposed for the case where the substrate is completely covered with CdTe. It is based on the assumption that Cd atoms are only incorporated at Te sites and Te atoms at Cd sites. As a consequence, deposition rates are determined by surface coverage terms as well as by charge and mass transfer. Unusual nonsteady state effects have been observed during perturbation of the electrode potential or mass-transfer rate. These effects have been explained successfully by the theory in terms of the relaxation of surface adatom coverages.

• OSTI ID: 5784756
• Journal Information: Journal of the Electrochemical Society; (United States), Journal Name: Journal of the Electrochemical Society; (United States) Vol. 140:10; ISSN JESOAN; ISSN 0013-4651
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360601* -- Other Materials-- Preparation & Manufacture
CADMIUM COMPOUNDS
CADMIUM TELLURIDES
CHALCOGENIDES
CHARGE TRANSPORT
CHEMISTRY
DATA
DEPOSITION
ELECTROCHEMISTRY
ELECTRODEPOSITION
ELECTROLYSIS
EXPERIMENTAL DATA
INFORMATION
KINETICS
LYSIS
MASS TRANSFER
MATHEMATICAL MODELS
NUMERICAL DATA
SURFACE COATING
TELLURIDES
TELLURIUM COMPOUNDS
VOLTAMETRY